Measurements:
°C
°F
Nantong
98°F
NE 9 mph
Feels like: 116°F
Precip: 5%
World Resorts China Nantong Weather

Nantong Sea Water Temperature

Current Sea Water Temperature:
+83.8°F
Maximum Sea Water Temperature in July: 92.0°F
Minimum Sea Water Temperature in July: 78.0°F
Average water temperature in July: 85.5°F

Sea Water Temperature for the Last 10 Days:

July 13 83.8°F July 08 84.2°F
July 12 84.0°F July 07 83.4°F
July 11 84.8°F July 06 84.6°F
July 10 85.0°F July 05 83.6°F
July 09 84.0°F July 04 83.0°F

When is the Warmest Sea for Nantong?

According to our data for the last three years for Nantong the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Nantong was 91.7°F. The maximum and minimum values were 88.8°F and 95.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Nantong was 88.2°F. The maximum and minimum values were 84.8°F and 90.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Nantong was 89.0°F. The maximum and minimum values were 83.4°F and 92.8°F respectively.

Best Time to Visit Nantong
The most sunny months:
December 18 days
January 16 days
October 16 days
The most warm months:
August 93.0 °F
July 92.9 °F
June 86.3 °F
Warmest sea temperature:
August 88.4 °F
July 85.5 °F
September 83.8 °F
The most cold months:
January 46.1 °F
February 48.5 °F
December 50.1 °F
The most rainy months:
July 9 days
August 8 days
June 6 days
The most windy months:
May 9 mph
March 9 mph
April 9 mph

Nantong on the Weather Map

China Resorts:
NAME
Beidaihe +90
Beijing +98
Dadunhai +86
Dalian +78
Guangzhou +92
Hainan +82
Hong Kong +82
Qinhuangdao +90
Quingdao +86
Sanya +86
Shanghai +100
Shenzhen +82
Weihai +78
Yalong Bay +86
Yantai +78
24 Hours Weather Forecast
Nantong
Local time: 14:44
14 jul, tuesday
1500 98°F
NE
9 mph
1800 94°F
NE
6 mph
2100 90°F
N
6 mph
15 jul, wednesday
0000 88°F
N
6 mph
0300 86°F
N
6 mph
0600 86°F
NE
5 mph
0900 94°F
NE
4 mph
1200 100°F
E
4 mph